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mm/slab.c: proper prototypes
[wrt350n-kernel.git] / drivers / media / video / tuner-simple.c
blob1b9b0742f753f53c181391b24eceac1b88d6e3c9
1 /*
2 *
3 * i2c tv tuner chip device driver
4 * controls all those simple 4-control-bytes style tuners.
5 */
6 #include <linux/delay.h>
7 #include <linux/i2c.h>
8 #include <linux/videodev.h>
9 #include <media/tuner.h>
10 #include <media/v4l2-common.h>
11
12 static int offset = 0;
13 module_param(offset, int, 0664);
14 MODULE_PARM_DESC(offset,"Allows to specify an offset for tuner");
15
16 /* ---------------------------------------------------------------------- */
17
18 /* tv standard selection for Temic 4046 FM5
19 this value takes the low bits of control byte 2
20 from datasheet Rev.01, Feb.00
21 standard BG I L L2 D
22 picture IF 38.9 38.9 38.9 33.95 38.9
23 sound 1 33.4 32.9 32.4 40.45 32.4
24 sound 2 33.16
25 NICAM 33.05 32.348 33.05 33.05
26 */
27 #define TEMIC_SET_PAL_I 0x05
28 #define TEMIC_SET_PAL_DK 0x09
29 #define TEMIC_SET_PAL_L 0x0a // SECAM ?
30 #define TEMIC_SET_PAL_L2 0x0b // change IF !
31 #define TEMIC_SET_PAL_BG 0x0c
32
33 /* tv tuner system standard selection for Philips FQ1216ME
34 this value takes the low bits of control byte 2
35 from datasheet "1999 Nov 16" (supersedes "1999 Mar 23")
36 standard BG DK I L L`
37 picture carrier 38.90 38.90 38.90 38.90 33.95
38 colour 34.47 34.47 34.47 34.47 38.38
39 sound 1 33.40 32.40 32.90 32.40 40.45
40 sound 2 33.16 - - - -
41 NICAM 33.05 33.05 32.35 33.05 39.80
42 */
43 #define PHILIPS_SET_PAL_I 0x01 /* Bit 2 always zero !*/
44 #define PHILIPS_SET_PAL_BGDK 0x09
45 #define PHILIPS_SET_PAL_L2 0x0a
46 #define PHILIPS_SET_PAL_L 0x0b
47
48 /* system switching for Philips FI1216MF MK2
49 from datasheet "1996 Jul 09",
50 standard BG L L'
51 picture carrier 38.90 38.90 33.95
52 colour 34.47 34.37 38.38
53 sound 1 33.40 32.40 40.45
54 sound 2 33.16 - -
55 NICAM 33.05 33.05 39.80
56 */
57 #define PHILIPS_MF_SET_BG 0x01 /* Bit 2 must be zero, Bit 3 is system output */
58 #define PHILIPS_MF_SET_PAL_L 0x03 // France
59 #define PHILIPS_MF_SET_PAL_L2 0x02 // L'
60
61 /* Control byte */
62
63 #define TUNER_RATIO_MASK 0x06 /* Bit cb1:cb2 */
64 #define TUNER_RATIO_SELECT_50 0x00
65 #define TUNER_RATIO_SELECT_32 0x02
66 #define TUNER_RATIO_SELECT_166 0x04
67 #define TUNER_RATIO_SELECT_62 0x06
68
69 #define TUNER_CHARGE_PUMP 0x40 /* Bit cb6 */
70
71 /* Status byte */
72
73 #define TUNER_POR 0x80
74 #define TUNER_FL 0x40
75 #define TUNER_MODE 0x38
76 #define TUNER_AFC 0x07
77 #define TUNER_SIGNAL 0x07
78 #define TUNER_STEREO 0x10
79
80 #define TUNER_PLL_LOCKED 0x40
81 #define TUNER_STEREO_MK3 0x04
82
83 /* ---------------------------------------------------------------------- */
84
85 static int tuner_getstatus(struct i2c_client *c)
86 {
87 unsigned char byte;
88
89 if (1 != i2c_master_recv(c,&byte,1))
90 return 0;
91
92 return byte;
93 }
94
95 static int tuner_signal(struct i2c_client *c)
96 {
97 return (tuner_getstatus(c) & TUNER_SIGNAL) << 13;
98 }
99
100 static int tuner_stereo(struct i2c_client *c)
101 {
102 int stereo, status;
103 struct tuner *t = i2c_get_clientdata(c);
104
105 status = tuner_getstatus (c);
106
107 switch (t->type) {
108 case TUNER_PHILIPS_FM1216ME_MK3:
109 case TUNER_PHILIPS_FM1236_MK3:
110 case TUNER_PHILIPS_FM1256_IH3:
111 case TUNER_LG_NTSC_TAPE:
112 stereo = ((status & TUNER_SIGNAL) == TUNER_STEREO_MK3);
113 break;
114 default:
115 stereo = status & TUNER_STEREO;
116 }
117
118 return stereo;
119 }
120
121
122 /* ---------------------------------------------------------------------- */
123
124 static void default_set_tv_freq(struct i2c_client *c, unsigned int freq)
125 {
126 struct tuner *t = i2c_get_clientdata(c);
127 u8 config, cb, tuneraddr;
128 u16 div;
129 struct tunertype *tun;
130 u8 buffer[4];
131 int rc, IFPCoff, i, j;
132 enum param_type desired_type;
133 struct tuner_params *params;
134
135 tun = &tuners[t->type];
136
137 /* IFPCoff = Video Intermediate Frequency - Vif:
138 940 =16*58.75 NTSC/J (Japan)
139 732 =16*45.75 M/N STD
140 704 =16*44 ATSC (at DVB code)
141 632 =16*39.50 I U.K.
142 622.4=16*38.90 B/G D/K I, L STD
143 592 =16*37.00 D China
144 590 =16.36.875 B Australia
145 543.2=16*33.95 L' STD
146 171.2=16*10.70 FM Radio (at set_radio_freq)
147 */
148
149 if (t->std == V4L2_STD_NTSC_M_JP) {
150 IFPCoff = 940;
151 desired_type = TUNER_PARAM_TYPE_NTSC;
152 } else if ((t->std & V4L2_STD_MN) &&
153 !(t->std & ~V4L2_STD_MN)) {
154 IFPCoff = 732;
155 desired_type = TUNER_PARAM_TYPE_NTSC;
156 } else if (t->std == V4L2_STD_SECAM_LC) {
157 IFPCoff = 543;
158 desired_type = TUNER_PARAM_TYPE_SECAM;
159 } else {
160 IFPCoff = 623;
161 desired_type = TUNER_PARAM_TYPE_PAL;
162 }
163
164 for (j = 0; j < tun->count-1; j++) {
165 if (desired_type != tun->params[j].type)
166 continue;
167 break;
168 }
169 /* use default tuner_params if desired_type not available */
170 if (desired_type != tun->params[j].type) {
171 tuner_dbg("IFPCoff = %d: tuner_params undefined for tuner %d\n",
172 IFPCoff,t->type);
173 j = 0;
174 }
175 params = &tun->params[j];
176
177 for (i = 0; i < params->count; i++) {
178 if (freq > params->ranges[i].limit)
179 continue;
180 break;
181 }
182 if (i == params->count) {
183 tuner_dbg("TV frequency out of range (%d > %d)",
184 freq, params->ranges[i - 1].limit);
185 freq = params->ranges[--i].limit;
186 }
187 config = params->ranges[i].config;
188 cb = params->ranges[i].cb;
189 /* i == 0 -> VHF_LO
190 * i == 1 -> VHF_HI
191 * i == 2 -> UHF */
192 tuner_dbg("tv: param %d, range %d\n",j,i);
193
194 div=freq + IFPCoff + offset;
195
196 tuner_dbg("Freq= %d.%02d MHz, V_IF=%d.%02d MHz, Offset=%d.%02d MHz, div=%0d\n",
197 freq / 16, freq % 16 * 100 / 16,
198 IFPCoff / 16, IFPCoff % 16 * 100 / 16,
199 offset / 16, offset % 16 * 100 / 16,
200 div);
201
202 /* tv norm specific stuff for multi-norm tuners */
203 switch (t->type) {
204 case TUNER_PHILIPS_SECAM: // FI1216MF
205 /* 0x01 -> ??? no change ??? */
206 /* 0x02 -> PAL BDGHI / SECAM L */
207 /* 0x04 -> ??? PAL others / SECAM others ??? */
208 cb &= ~0x02;
209 if (t->std & V4L2_STD_SECAM)
210 cb |= 0x02;
211 break;
212
213 case TUNER_TEMIC_4046FM5:
214 cb &= ~0x0f;
215
216 if (t->std & V4L2_STD_PAL_BG) {
217 cb |= TEMIC_SET_PAL_BG;
218
219 } else if (t->std & V4L2_STD_PAL_I) {
220 cb |= TEMIC_SET_PAL_I;
221
222 } else if (t->std & V4L2_STD_PAL_DK) {
223 cb |= TEMIC_SET_PAL_DK;
224
225 } else if (t->std & V4L2_STD_SECAM_L) {
226 cb |= TEMIC_SET_PAL_L;
227
228 }
229 break;
230
231 case TUNER_PHILIPS_FQ1216ME:
232 cb &= ~0x0f;
233
234 if (t->std & (V4L2_STD_PAL_BG|V4L2_STD_PAL_DK)) {
235 cb |= PHILIPS_SET_PAL_BGDK;
236
237 } else if (t->std & V4L2_STD_PAL_I) {
238 cb |= PHILIPS_SET_PAL_I;
239
240 } else if (t->std & V4L2_STD_SECAM_L) {
241 cb |= PHILIPS_SET_PAL_L;
242
243 }
244 break;
245
246 case TUNER_PHILIPS_ATSC:
247 /* 0x00 -> ATSC antenna input 1 */
248 /* 0x01 -> ATSC antenna input 2 */
249 /* 0x02 -> NTSC antenna input 1 */
250 /* 0x03 -> NTSC antenna input 2 */
251 cb &= ~0x03;
252 if (!(t->std & V4L2_STD_ATSC))
253 cb |= 2;
254 /* FIXME: input */
255 break;
256
257 case TUNER_MICROTUNE_4042FI5:
258 /* Set the charge pump for fast tuning */
259 config |= TUNER_CHARGE_PUMP;
260 break;
261
262 case TUNER_PHILIPS_TUV1236D:
263 /* 0x40 -> ATSC antenna input 1 */
264 /* 0x48 -> ATSC antenna input 2 */
265 /* 0x00 -> NTSC antenna input 1 */
266 /* 0x08 -> NTSC antenna input 2 */
267 buffer[0] = 0x14;
268 buffer[1] = 0x00;
269 buffer[2] = 0x17;
270 buffer[3] = 0x00;
271 cb &= ~0x40;
272 if (t->std & V4L2_STD_ATSC) {
273 cb |= 0x40;
274 buffer[1] = 0x04;
275 }
276 /* set to the correct mode (analog or digital) */
277 tuneraddr = c->addr;
278 c->addr = 0x0a;
279 if (2 != (rc = i2c_master_send(c,&buffer[0],2)))
280 tuner_warn("i2c i/o error: rc == %d (should be 2)\n",rc);
281 if (2 != (rc = i2c_master_send(c,&buffer[2],2)))
282 tuner_warn("i2c i/o error: rc == %d (should be 2)\n",rc);
283 c->addr = tuneraddr;
284 /* FIXME: input */
285 break;
286 }
287
288 if (params->cb_first_if_lower_freq && div < t->last_div) {
289 buffer[0] = config;
290 buffer[1] = cb;
291 buffer[2] = (div>>8) & 0x7f;
292 buffer[3] = div & 0xff;
293 } else {
294 buffer[0] = (div>>8) & 0x7f;
295 buffer[1] = div & 0xff;
296 buffer[2] = config;
297 buffer[3] = cb;
298 }
299 t->last_div = div;
300 if (params->has_tda9887) {
301 int config = 0;
302 int is_secam_l = (t->std & (V4L2_STD_SECAM_L | V4L2_STD_SECAM_LC)) &&
303 !(t->std & ~(V4L2_STD_SECAM_L | V4L2_STD_SECAM_LC));
304
305 if (t->std == V4L2_STD_SECAM_LC) {
306 if (params->port1_active ^ params->port1_invert_for_secam_lc)
307 config |= TDA9887_PORT1_ACTIVE;
308 if (params->port2_active ^ params->port2_invert_for_secam_lc)
309 config |= TDA9887_PORT2_ACTIVE;
310 }
311 else {
312 if (params->port1_active)
313 config |= TDA9887_PORT1_ACTIVE;
314 if (params->port2_active)
315 config |= TDA9887_PORT2_ACTIVE;
316 }
317 if (params->intercarrier_mode)
318 config |= TDA9887_INTERCARRIER;
319 if (is_secam_l) {
320 if (i == 0 && params->default_top_secam_low)
321 config |= TDA9887_TOP(params->default_top_secam_low);
322 else if (i == 1 && params->default_top_secam_mid)
323 config |= TDA9887_TOP(params->default_top_secam_mid);
324 else if (params->default_top_secam_high)
325 config |= TDA9887_TOP(params->default_top_secam_high);
326 }
327 else {
328 if (i == 0 && params->default_top_low)
329 config |= TDA9887_TOP(params->default_top_low);
330 else if (i == 1 && params->default_top_mid)
331 config |= TDA9887_TOP(params->default_top_mid);
332 else if (params->default_top_high)
333 config |= TDA9887_TOP(params->default_top_high);
334 }
335 if (params->default_pll_gating_18)
336 config |= TDA9887_GATING_18;
337 i2c_clients_command(c->adapter, TDA9887_SET_CONFIG, &config);
338 }
339 tuner_dbg("tv 0x%02x 0x%02x 0x%02x 0x%02x\n",
340 buffer[0],buffer[1],buffer[2],buffer[3]);
341
342 if (4 != (rc = i2c_master_send(c,buffer,4)))
343 tuner_warn("i2c i/o error: rc == %d (should be 4)\n",rc);
344
345 switch (t->type) {
346 case TUNER_LG_TDVS_H06XF:
347 /* Set the Auxiliary Byte. */
348 buffer[0] = buffer[2];
349 buffer[0] &= ~0x20;
350 buffer[0] |= 0x18;
351 buffer[1] = 0x20;
352 tuner_dbg("tv 0x%02x 0x%02x\n",buffer[0],buffer[1]);
353
354 if (2 != (rc = i2c_master_send(c,buffer,2)))
355 tuner_warn("i2c i/o error: rc == %d (should be 2)\n",rc);
356 break;
357 case TUNER_MICROTUNE_4042FI5:
358 {
359 // FIXME - this may also work for other tuners
360 unsigned long timeout = jiffies + msecs_to_jiffies(1);
361 u8 status_byte = 0;
362
363 /* Wait until the PLL locks */
364 for (;;) {
365 if (time_after(jiffies,timeout))
366 return;
367 if (1 != (rc = i2c_master_recv(c,&status_byte,1))) {
368 tuner_warn("i2c i/o read error: rc == %d (should be 1)\n",rc);
369 break;
370 }
371 if (status_byte & TUNER_PLL_LOCKED)
372 break;
373 udelay(10);
374 }
375
376 /* Set the charge pump for optimized phase noise figure */
377 config &= ~TUNER_CHARGE_PUMP;
378 buffer[0] = (div>>8) & 0x7f;
379 buffer[1] = div & 0xff;
380 buffer[2] = config;
381 buffer[3] = cb;
382 tuner_dbg("tv 0x%02x 0x%02x 0x%02x 0x%02x\n",
383 buffer[0],buffer[1],buffer[2],buffer[3]);
384
385 if (4 != (rc = i2c_master_send(c,buffer,4)))
386 tuner_warn("i2c i/o error: rc == %d (should be 4)\n",rc);
387 break;
388 }
389 }
390 }
391
392 static void default_set_radio_freq(struct i2c_client *c, unsigned int freq)
393 {
394 struct tunertype *tun;
395 struct tuner *t = i2c_get_clientdata(c);
396 u8 buffer[4];
397 u16 div;
398 int rc, j;
399 enum param_type desired_type = TUNER_PARAM_TYPE_RADIO;
400 struct tuner_params *params;
401
402 tun = &tuners[t->type];
403
404 for (j = 0; j < tun->count-1; j++) {
405 if (desired_type != tun->params[j].type)
406 continue;
407 break;
408 }
409 /* use default tuner_params if desired_type not available */
410 if (desired_type != tun->params[j].type)
411 j = 0;
412
413 div = (20 * freq / 16000) + (int)(20*10.7); /* IF 10.7 MHz */
414 params = &tun->params[j];
415 buffer[2] = (params->ranges[0].config & ~TUNER_RATIO_MASK) | TUNER_RATIO_SELECT_50; /* 50 kHz step */
416
417 switch (t->type) {
418 case TUNER_TENA_9533_DI:
419 case TUNER_YMEC_TVF_5533MF:
420 tuner_dbg ("This tuner doesn't have FM. Most cards has a TEA5767 for FM\n");
421 return;
422 case TUNER_PHILIPS_FM1216ME_MK3:
423 case TUNER_PHILIPS_FM1236_MK3:
424 case TUNER_PHILIPS_FMD1216ME_MK3:
425 case TUNER_LG_NTSC_TAPE:
426 buffer[3] = 0x19;
427 break;
428 case TUNER_TNF_5335MF:
429 buffer[3] = 0x11;
430 break;
431 case TUNER_PHILIPS_FM1256_IH3:
432 div = (20 * freq) / 16000 + (int)(33.3 * 20); /* IF 33.3 MHz */
433 buffer[3] = 0x19;
434 break;
435 case TUNER_LG_PAL_FM:
436 buffer[3] = 0xa5;
437 break;
438 case TUNER_MICROTUNE_4049FM5:
439 div = (20 * freq) / 16000 + (int)(33.3 * 20); /* IF 33.3 MHz */
440 buffer[3] = 0xa4;
441 break;
442 default:
443 buffer[3] = 0xa4;
444 break;
445 }
446 if (params->cb_first_if_lower_freq && div < t->last_div) {
447 buffer[0] = buffer[2];
448 buffer[1] = buffer[3];
449 buffer[2] = (div>>8) & 0x7f;
450 buffer[3] = div & 0xff;
451 } else {
452 buffer[0] = (div>>8) & 0x7f;
453 buffer[1] = div & 0xff;
454 }
455
456 tuner_dbg("radio 0x%02x 0x%02x 0x%02x 0x%02x\n",
457 buffer[0],buffer[1],buffer[2],buffer[3]);
458 t->last_div = div;
459
460 if (params->has_tda9887) {
461 int config = 0;
462 if (params->port1_active && !params->port1_fm_high_sensitivity)
463 config |= TDA9887_PORT1_ACTIVE;
464 if (params->port2_active && !params->port2_fm_high_sensitivity)
465 config |= TDA9887_PORT2_ACTIVE;
466 if (params->intercarrier_mode)
467 config |= TDA9887_INTERCARRIER;
468 /* if (params->port1_set_for_fm_mono)
469 config &= ~TDA9887_PORT1_ACTIVE;*/
470 if (params->fm_gain_normal)
471 config |= TDA9887_GAIN_NORMAL;
472 i2c_clients_command(c->adapter, TDA9887_SET_CONFIG, &config);
473 }
474 if (4 != (rc = i2c_master_send(c,buffer,4)))
475 tuner_warn("i2c i/o error: rc == %d (should be 4)\n",rc);
476 }
477
478 int default_tuner_init(struct i2c_client *c)
479 {
480 struct tuner *t = i2c_get_clientdata(c);
481
482 tuner_info("type set to %d (%s)\n",
483 t->type, tuners[t->type].name);
484 strlcpy(c->name, tuners[t->type].name, sizeof(c->name));
485
486 t->set_tv_freq = default_set_tv_freq;
487 t->set_radio_freq = default_set_radio_freq;
488 t->has_signal = tuner_signal;
489 t->is_stereo = tuner_stereo;
490 t->standby = NULL;
491
492 return 0;
493 }
494
495 /*
496 * Overrides for Emacs so that we follow Linus's tabbing style.
497 * ---------------------------------------------------------------------------
498 * Local variables:
499 * c-basic-offset: 8
500 * End:
501 */
WRT350N Kernel Patches